Magnetic permeability µ is the degree of magnetization of material in response to a magnetic field. It is the ratio of magnetic flux density B and magnetic flux H. The physical constant µ0 is the magnetic permeability in vacuum. Relative permeability µr is the ration of µ and µ0. MAGNETOSCOP and MAGNETOMAT with permeability probe will determine relative permeability of material and manufactured components in accordance with IEC 60404-15, ASTM A342M and VG 95578. It is not necessary to produce test specimen of specific size or shape.
Magnetic flux density B a measure of magnetic field strength is the amount of magnetic flux through a unit area taken perpendicular to the direction of the magnetic flux. It can be described in terms of a vector field. Fluxgate sensors can determine magnitude and direction of B. Using MAGNETOSCOP and MAGNETOMAT magnetometer with appropriate sensors, magnetic flux density can be determined simultaneously in 1 up to 3 directions. By means of a differential probe the magnetic flux density gradient can be determined in one direction.